
One standard,
printed on every lot.
Forty-plus compounds synthesized in the United States and released at 99% or higher purity by HPLC and mass spectrometry. Third-party tested. The vial carries a lot number, and the lot number carries its own Certificate of Analysis.
Third-party tested · U.S. fulfillment · Plain, discreet packaging
Every lot is released this way. Look up yours for the actual values.
Lot-matched COA on every vialSeven checkpoints between synthesis and shipment.
A lot moves forward only when the prior result is on file. The certificate is the last step, not the first claim.
Synthesis
Solid-phase assembly of the named sequence.
HPLC purity
Chromatographic assay, released at 99% or higher.
Mass-spec identity
Molecular weight confirmed against the reference.
Endotoxin
Screened for bacterial endotoxin load.
Sterility
Filled and sealed under controlled conditions.
Heavy metals
Elemental impurity panel on the finished lot.
COA issued
Results bound to the lot number on the vial.



One standard. Every vial.
Start from the question, not the product list.
Five areas cover the catalog. Each one is filtered, priced and documented the same way.
Reordered most, tested the same.
What a United COA reports.
A certificate is only useful if it covers the things that can go wrong. Here is the panel we publish, against what a research buyer is commonly handed.
| Line item | United Peptides | Typical vendor |
|---|---|---|
| HPLC purityAssayed value printed, not a range | ||
| MS identityMolecular weight against the reference | ||
| EndotoxinBacterial endotoxin result on the lot | ||
| SterilityFill and seal verification | ||
| Heavy metalsElemental impurity panel | ||
| Batch consistencySame panel repeated lot to lot | ||
| Public lot lookupEnter the vial number, read the file |
Purity of 99% or higher by HPLC and mass spectrometry. Third-party tested. Lot-matched Certificate of Analysis. Made in the USA. For laboratory research use only, not for human or veterinary use.
Read the file before you open the vial.
The lot number is printed on the label. Enter it and the matching certificate comes back. No account, no request form.
Certificate of Analysis
Specimen layout. Values below are placeholders for illustration only.
- Compound
- Sample compound
- Lot
- UP-SAMPLE-0000
- Purity by HPLC
- 99.4% (sample value)
- Identity by MS
- Confirmed against reference (sample)
- Endotoxin
- Within limit (sample)
- Sterility
- Pass (sample)
- Issued
- Sample document, no issue date
Not a released result. Every shipped lot carries its own certificate, matched to the number on the vial.
Sets priced below the parts.
Everything in this catalog is supplied strictly for laboratory and research use only. These products are not drugs, foods, supplements or cosmetics, are not approved by the FDA, and are not intended to diagnose, treat, cure or prevent any disease, or for human or veterinary use. We do not publish dosing guidance and we do not give medical advice.
Every lot is assayed by high-performance liquid chromatography and released only at 99% purity or higher, with molecular weight confirmed by mass spectrometry against the reference for that compound. Testing is third-party, so the result is not ours to grade.
The lot number is printed on the vial label. Enter it in the lot lookup on this page and the matching Certificate of Analysis comes back. A lot-matched COA exists for every product and every batch, and support can send it before you order.
Orders ship from the United States with tracking, in plain packaging with no identifying labels on the outside. Shipping is $12.99, and free on orders of $1,000 and up. Overnight delivery is $250 extra.
Payment is by card on a secure payment page, and the charge appears on your statement as AP STORE.
The Refund and Shipping Policy is being finalized for United Peptides and will be published before launch. Until then, contact support@unitedpeptides.us with any questions about orders, shipping, returns, or how your information is handled.














